Stool



FIG. 1 is a top perspective view of the stool of the present invention;

FIG. 2 is a side plan view of the stool the opposite side being identical thereto;

FIG. 3 is a right side view of the stool the left side being identical thereto;

FIG. 4 is a bottom view of the stool; and,

FIG. 5 is a top view of the stool. 

The ornamental design for a stool, as shown and described. 